Sauna Waterproofing Systems

Sauna waterproofing is critical for keeping this high-humidity environment safe, durable, and comfortable. Unlike ordinary rooms, saunas combine heat, steam, and constant moisture that can damage subfloors, wall structures, and finishes if left unprotected. ProLux offers waterproof sauna floor systems and sauna waterproof membranes designed specifically to handle the unique demands of saunas, giving you long-lasting protection where it matters most.

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$361.25 - $2,520.00

$361.25

$289.00 - $2,016.00

$289.00

PROVA Board Plus+ Waterproof Tile Backer Board

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PROVA Board Plus+ is a lightweight, waterproof high-density XPS foam tile backer board that replaces heavy, moisture-prone cement boards with a cle...

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$361.25 - $2,520.00

$361.25

$289.00 - $2,016.00

$289.00

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$27.44 - $299.94

$27.44

$21.95 - $239.95

$21.95

PROVA Seal Hybrid Silicone Waterproof Sealant & Adhesive

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PROVA Seal — the next-generation hybrid silicone shower waterproof sealant that combines the flexibility of silicone with the strength of an adhesi...

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$27.44 - $299.94

$27.44

$21.95 - $239.95

$21.95

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$136.25 - $530.00

$136.25

$109.00 - $424.00

$109.00

PROVA Mat Waterproofing Membrane

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PROVA Mat Waterproofing Membrane is a thin, flexible, low-perm sheet membrane that creates a watertight barrier for tile showers, bathrooms, and we...

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$136.25 - $530.00

$136.25

$109.00 - $424.00

$109.00

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$31.19 - $866.88

$31.19

$24.95 - $693.50

$24.95

PROVA Joint Waterproofing Membrane Band

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PROVA Joint is a thin waterproof membrane tape designed to seal critical seams, corners, and transitions in PROVA waterproofing and underlayment ap...

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$31.19 - $866.88

$31.19

$24.95 - $693.50

$24.95

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$34.94 - $336.25

$34.94

$27.95 - $269.00

$27.95

PROVA Corner Outside Waterproof Corner

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Waterproof every corner with precision. The PROVA Preformed Outside Corner provides quick, dependable waterproofing for outside-angle corners on sh...

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$34.94 - $336.25

$34.94

$27.95 - $269.00

$27.95

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$34.94 - $336.25

$34.94

$27.95 - $269.00

$27.95

PROVA Corner Inside Waterproof Corner

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Seal every corner with confidence. The PROVA Inside Preformed Waterproofing Corner delivers fast, reliable waterproofing protection where leaks and...

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$34.94 - $336.25

$34.94

$27.95 - $269.00

$27.95

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$9.94 - $87.44

$9.94

$7.95 - $69.95

$7.95

PROVA Pipe Seal Waterproof Pipe Collar

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The PROVA Pipe Seal is a prefabricated, waterproof pipe collar engineered to create a watertight, long-lasting seal around pipe penetrations in sho...

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$9.94 - $87.44

$9.94

$7.95 - $69.95

$7.95

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$21.19 - $112.44

$21.19

$16.95 - $89.95

$16.95

PROVA Wide-Head Tile Backer Board Washers

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PROVA Wide-Head Washers are purpose-engineered to lock XPS foam backer boards securely in place without crushing the surface — delivering the stabl...

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$21.19 - $112.44

$21.19

$16.95 - $89.95

$16.95

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$24.94 - $104.38

$24.94

$19.95 - $83.50

$19.95

PROVA Fasteners Backer Board Screws 1-5/8"

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PROVA Fasteners are purpose-built screws engineered for attaching PROVA XPS backer boards and accessories to wood or metal substrates. Designed for...

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$24.94 - $104.38

$24.94

$19.95 - $83.50

$19.95

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Reliable Sauna Waterproofing Solutions

Saunas are constantly exposed to steam, heat, and water runoff, all of which can easily seep into cracks and joints if left unprotected. Without proper waterproofing, this moisture can weaken the structure, encourage mold growth, and reduce the lifespan of your sauna. To prevent these costly issues, ProLux provides specialised sauna waterproofing systems designed to withstand extreme conditions.

Our solutions include durable sauna waterproof membranes and complete systems for waterproofing sauna floors. A sealed sauna floor keeps excess water and condensation from reaching the subfloor, ensuring the foundation remains strong and stable. At the same time, waterproof membranes act as a protective envelope, safeguarding walls, corners, and joints against constant humidity.

By combining these advanced products, ProLux transforms a sauna from a vulnerable space into a protected, long-lasting retreat. The result is a sauna that stays secure, easy to maintain, and ready for daily use without the risk of hidden damage or deterioration.

Why Sauna Waterproofing Ensures Durability and Comfort

Creates a fully sealed sauna floor, which prevents moisture from penetrating the subfloor and keeps the structure stable.
Protects walls with sauna waterproof membranes, which block steam and water from weakening hidden surfaces.
Strengthens sauna interiors, which helps them withstand repeated heating and cooling cycles without losing integrity.
Reduces mold and mildew inside the sauna, which preserves air quality and enhances the comfort of every session.
Extends the lifespan of saunas, which safeguards your investment and reduces long-term maintenance costs.

With ProLux sauna waterproofing, you gain peace of mind knowing every surface is prepared for the intense conditions inside your sauna. These systems are designed to protect your space while allowing you to fully enjoy the warmth and relaxation it provides.

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FREQUENTLY ASKED QUESTIONS

Why is sauna waterproofing different from other rooms?

Saunas produce extreme heat and constant steam, so they require specialized waterproofing to protect floors and walls from continuous moisture exposure.

How do I properly waterproof a sauna floor?

Installing a sauna waterproof membrane from ProLux beneath the floor creates a watertight barrier that prevents condensation and water runoff from reaching the subfloor.

Does waterproofing improve sauna hygiene?

Yes, sauna floor waterproofing minimizes trapped moisture, which helps prevent mold and mildew, keeping the sauna healthier and more enjoyable.

How long can sauna waterproofing last under heat and steam?

When installed correctly, ProLux sauna waterproofing systems provide dependable protection that lasts as long as the sauna’s interior materials remain in use.